Back to results
US 2014/0351576 A1Published application
Server algorithms to improve space based authentication
AssigneeThe Boeing Company
InventorsPer K. Enge, David Lawrence, Michael L. O'Connor, Michael L. Eglington, Gregory M. Gutt, David A. Whelan
Life of this patent
Estimating the term…
Abstract
A system and methods for location authentication are presented. An estimated server signal is estimated based on a generated known code signal, and a client received satellite signal is received from a client device. The client received satellite signal is compared to the estimated server signal to provide a comparison result.
Claims20
A method for location authentication, the method comprising:
- constructing an estimated server unknown high-rate encrypted code signal based on an estimated server unknown low-rate code signal and a generated known high-rate code signal;
- receiving a client received unknown high-rate encrypted code satellite signal from a client device;
- and
- comparing the client received unknown high-rate encrypted code satellite signal to the estimated server unknown high-rate encrypted code signal to provide a code comparison result.
1 more element
A location authentication system comprising:
- a server configured to:
- construct an estimated server unknown high-rate encrypted code signal based on an estimated server unknown low-rate code signal and a generated known high-rate code signal;
- receive a client received unknown high-rate encrypted code satellite signal from a client device;
- and
- compare the client received unknown high-rate encrypted code satellite signal to the estimated server unknown high-rate encrypted code signal to provide a code comparison result;
- and
- an authentication module configured to authenticate a location of the client device based on the code comparison result.
4 more elements
A method for location authentication, the method comprising:
- receiving a client filtered satellite signal from a client device, the client filtered satellite signal comprising a client received satellite signal filtered through a client signal filter;
- determining filter characteristics of the client signal filter by one of:
- receiving the filter characteristics from the client device, and
- estimating a transfer function of the client signal filter based on the client filtered satellite signal;
- configuring an emulating signal filter to emulate the client signal filter based on the filter characteristics;
- receiving a server received satellite signal from a satellite receiver device;
- filtering the server received satellite signal with the emulating signal filter to provide an emulated filtered satellite signal;
- and
- comparing the client received satellite signal and the emulated filtered satellite signal to provide a signal comparison result.
6 more elements
Dependencies are inferred from the claim text.